A crew works with freshly poured concrete on a driveway in Indianapolis. Driveway extension ideas for homeowners looking to extend or expand a concrete or asphalt driveway. You purchased a new RV or maybe your teenager started to drive. If your existing driveway doesn't provide enough room for any number of reasons, you may need to widen or extend your driveway to better suit your needs.
Vitamins are conventionally divided into the fat-soluble group A, D, E and K, and the water-soluble group, vitamin C (ascorbic acid) and the B vitamins-B 1 (thiamine), B 2 (riboflavine, riboflavin), nicotinic acid, B6 (pyridoxine), pantothenic acid, biotin, folic acid and B12.
Definition of vitamin for Students. : any of a group of substances that are found naturally in many foods, are necessary in small quantities for good health and normal development and functioning, and are designated by a capital letter and sometimes a number vitamin B6 vitamin C.